54. A. tired                          B. bored                       C. thirsty                      D. hungry

53. A. want                         B. visit                         C. love                         D. find

52. A. clearest                      B. funniest                    C. most relaxing D. most frightening

51. A. metal                        B. arrive                       C. glass                        D. stone

50. A. return                        B. arrive                       C. leave                        D. travel

49. A. decide                       B. like                          C. hope                        D. need

48. A, can                           B. must                        C. should                      D. have to

47. A. When                        B. If                            C. Because                    D. Until